Abstract
This paper examines output feedback control of wireless networked control systems where there are separate links between the sensor-to-controller and controller-to-actuator. The proposed triggering events only rely on local information so that the transmissions from the sensor and controller subsystems are not necessarily synchronized. This represents an advance over recent work in event-triggered output feedback control where transmission from the controller subsystem was tightly coupled to the receipt of event-triggered sensor data. The paper presents an upper bound on the optimal cost attained by the closed-loop system. Simulation results demonstrate that transmissions between sensors and controller subsystems are not tightly synchronized. These results are also consistent with derived upper bounds on overall system cost.
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References
Cogill R, Lall S (2006) Suboptimality bounds in stochastic control: a queueing example. In: American control conference, 2006. IEEE, pp 1642–1647
Cogill R, Lall S, Hespanha J (2010) A constant factor approximation algorithm for event-based sampling. Springer, pp 51–60
Donkers M, Heemels W (2010) Output-based event-triggered control with guaranteed L8-gain and improved event-triggering. In: Proceedings of the 49th IEEE conference on decision and control
Gordienko E, Hernández-Lerma O (1995) Average cost markov control processes with weighted norms: value iteration. Appl Math 23:219–237
Hernández-Lerma O, Lasserre J (1996) Discrete-time Markov control processes: basic optimality criteria. Springer, New York
Li L, Lemmon M (2010) Event-triggered output feedback control of finite horizon discrete-time multi-dimensional linear processes. In: Proceedings of the 49th IEEE conference on decision and control
Meyn S (1997) The policy iteration algorithm for average reward markov decision processes with general state space. IEEE Trans Autom Control 42(12):1663–1680
Molin A, Hirche S (2010) Structural characterization of optimal event-based controllers for linear stochastic systems. In: Proceedings of the 49th IEEE conference on decision and control
Tabuada P (2007) Event-triggered real-time scheduling of stabilizing control tasks. IEEE Trans Autom Control 52:1680–1685
Wang X, Lemmon M (2009) Self-triggered feedback control systems with finite-gain L2 stability. IEEE Trans Autom Control 54:452–467
Yu H, Antsaklis PJ (2011) Event-triggered output feedback control for networked control systems using passivity: triggering condition and limitations. In: 2011 50th IEEE conference on decision and control and European control conference (CDC-ECC). IEEE, pp 199–204
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Li, L.‘., Lemmon, M. Weakly coupled event triggered output feedback system in wireless networked control systems. Discrete Event Dyn Syst 24, 247–260 (2014). https://doi.org/10.1007/s10626-013-0165-3
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DOI: https://doi.org/10.1007/s10626-013-0165-3